Slide-valve gear for four-stroke explosive-engines.



H. HUCKEL. SLIDE VALVE GEAR FOR FOUR-STROKE EXPLOSIVE ENGINES. APPLICATION FILED MAY 5. 1914.

1,173,970; a P3tented Feb. 29,1916.

@the spentchargev I .i V

Ai-fui'ther ob'eet ofxthisv invention. is to', provide a valve mechanism which shallvaryf the area. of the cylindef'during the charging and exhausting periods, inorder to obtain 7 w i by the spark plug 21. at the proper moment,

and then upon the nextupstroke of the pistime).

' To all whom it may concern:

. UNITED i W nose ritfo mn, ouiunum'rscimiiv, Anemia-HUNG RY:

ments in Slide-Valve Gear for Four. troke ExplosiomEngines; of which the following is a specification.-

This invent on relates to. valve gears for gas engines, and is adapted to improve upon the construction shown in my prior Patent, No. 1,088,580, dated February 24%,1914.

The primary object of this invention is to provide a slide valve located in. one'end of the gas engine cylinder, and is so con-v structed as to form a eylinderwhich maybe operated to admit a :ehajrge or toeXha-ust the most effective results.

With these and other objects in view, this invention consists in the peculiar combination and arrangement of the variousspa'rts of a slide valve gear, as will be hereinafter described and. more particularly set forth in the appended claim. Referring to the drawings forming a portion of this application, wherein similar relerence numerals indicate similar parts when ever used the figure is, an axial section through a motor embodying my improved device. v

The numeral A represents the cylinder v .housed at its upper end by a casingA', which forms chamber-A g Belowtheease ing A" the cylinder is provided with n nular exhaust ol'iarnber lg,-

Communicating with exhaust and the cylinder A, ar eloutlet opemngsd.

, The top end a is closed by means of a transverse wall 14; provided with acentrals'tperf ture, through which extends a hollow-monk her 1', which is provided on its lower end with a plurality of radial arms 4v, which support the cylindricalslide valve 2 and on its outer end with a bolt w having-a central aperture with outwardly extending members z and 2 which are connected by ineansof a. stirrup member 3 in order to hold the guides rig d. 4

Mounted in suitable bearingsin casuigA' I Specillcation of Letters Patent. v 'App ueeum filed m5, 191;. SeirialNo. 936,513;

,eretion' the parts are sotimedthat when the change the eccentric will operate to move the at thesametime:theinletportm will '1' register Wlth the inletportcp andperiuita the cylinder at the time the gas is freed,lis greater than that'during the period of ex t and a much more eli'ectiv e exhaust action. Y X l claunfi [comic :1; e said exhaust ehenibe12v i c we being rov ded in said cylinder rate with said slide loco, an inlet port said basis, and an inlet duct m said eccentric, guides positioned at right angles tosaidp SiZJDQ-VALVE GEAR FOB. FooR-s'TR'oKE EXPLOSIVEENGINE;

, Patented nee; 2e, 1916...;

is a horizontal shaft or, to which is secured 1 an eccentric o. l his eccentrieis hollowaiid is open at its ends to communicate with a port m, which communicates through the 7 medium of the 'portp with the combustion 60 chamber ofhthc cylinderafl Surrounding the i ,periphery of the eccentric is a band on caemg a, the lower portion or base of WlllCh is provided with lateral'fia'ngesl ankle, edapted to rest upon the bolt w, asshown, and i also; further provided with flanges 5 and fi resting upon the stirrup member 9; In op, s

working piston wdescen'ds to suck in the" slidevelve 2 inthe oiiposite direction and 11 close theports 4l-d o the exhaust port K, a 9

cherge tohedrawninthrough thesuction'pipe I 7.; "Eheireturn-stroke of th :l iSton'wiH com 1 Q pressthecharge, and the latter will befreed ton, the eccentric I) willmov'e the slide valve 30 2. so as to bring the exheustports into commurueat on with the cylinder, which will be I purged; v .1 v

By the construction described, the air of haust ofthe spent geses vvhieh produce a much more efiective ootioniupon the piston y In a slide valve gear for explosion;" en,x

suo- .s tionJpipefisiifilibly engagedin said hole, a pluralityof verins connecting said suction 1 pipe at itslower'eud with said piston valve, slide facelcerried by then; endof' seidw tionpjipe,ian-inletportin said slidiace, it necc'ntric above the said sli.de,face,'en eccentric strap for saidleccentric' a basis-on said eccentric strap and adopted to cooper-nec and" rigidly connected with the,

7 letter, a. transverse member (7'), connecting In testimony whereof I have hereunto set the outer QIiFIdS of safid guidgs aniigdaptedbto I my hand in presence of two witnesses. present a s 1 6 sur ace, an a s 1 e menu er provided on the outer side of said eccentric- HUGO U 5 strap and adapted to cofiperate with said Witnesses:

transverse niember, substantially as and for ADA MAMA BERGER,

the purpose set forth. ADELAIDE FUNK. 

